Description

Ethylene Glycol, Polymer With Isophthalic Acid And Maleic Anhydride is a specialized unsaturated polyester resin intermediate, identified by CAS NO 52397-42-9. This polymer is a critical precursor for formulating high-performance thermosetting plastics and coatings, offering excellent mechanical properties and chemical resistance upon curing. It is essential for manufacturers in the composites, automotive, and construction industries seeking durable, lightweight materials.

Application

• Unsaturated Polyester Resin (UPR) Production: The primary use as a key intermediate for manufacturing general-purpose and isophthalic-grade polyester resins.
• Fiberglass Reinforced Plastics (FRP): Used in the production of corrosion-resistant tanks, pipes, and ducts for chemical processing and water treatment.
• Gel Coats & Surface Coatings: Serves as a base resin for high-gloss, durable gel coats used in marine (boat hulls) and sanitary ware (bathtubs, sinks).
• Automotive Parts: A component in resin formulations for lightweight body panels, spoilers, and other composite parts.
• Construction Materials: Used in the manufacture of solid surface countertops, artificial stone, and translucent roofing panels.
• Electrical Laminates: Employed in the production of printed circuit board (PCB) substrates and electrical insulation components.

Basic Information

Item	Details
Product Name	Ethylene Glycol, Polymer With Isophthalic Acid And Maleic Anhydride
CAS No.	52397-42-9
Molecular Formula	(C10H8O4.C4H2O3.C2H6O2)x
Molecular Weight	Polymer - Contact for details
Synonyms	Isophthalic-Maleic Polyester Resin; Poly(ethylene glycol isophthalate-co-maleate); Unsaturated Polyester Prepolymer; UPR Intermediate; Isophthalic Acid-Maleic Anhydride-Ethylene Glycol Copolymer; Poly(oxy-1,2-ethanediyloxycarbonyl-1,3-phenylenecarbonyloxyethylidene-1,1-diyl); 1,3-Benzenedicarboxylic acid, polymer with 2,5-furandione and 1,2-ethanediol
EINECS	Contact for details

Quality Control

Our production of Ethylene Glycol, Polymer With Isophthalic Acid And Maleic Anhydride follows stringent quality protocols to ensure batch-to-batch consistency and performance. Key parameters such as acid value, viscosity, and reactivity are rigorously tested against internal specifications. A Certificate of Analysis (COA) detailing these results is provided with every shipment to guarantee compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C/59-77°F). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product properties. Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	Clear, viscous liquid to pale solid
Acid Value (mg KOH/g)	20 - 35
Viscosity @ 25°C (cPs)	Specification available upon request
Color (Gardner)	≤ 3
Solid Content (%)	60 - 70 (in Styrene)
Gel Time @ 25°C (min)	Specification available upon request
Identification (IR)	Conforms to structure

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.